Q: Why we become the city which "its air is so bad"?

Dear people in HK,

Have you ever thought about the answer of the question above? That why the western media keep saying the air is so polluted in Hongkong, why the air in downtown Mong Kok or Causeway Bay is always more polluted than the air in downtown Tuen Mun or Yuen Long, why we have fewer & fewer days with blue sky every year despite measures such as conversion of taxi from petrol-run to LPG-run.... etc?

Something must be wrong in our own city, not to blame our mainland neighbour all the time. In fact Shenzhen has strived to become a "green city" in true scale & sense.

So could you just give some thoughts to the question - and let me know the answer!